I have a 2014 Xterra X without the wet box so I bought a wet box from the dealer. It looked like a pretty easy install. All I had to do was remove 4 torx screws that hold a piece of plastic behind the air dam. Well, it was not that easy after all. 3 out of 4 screwd just spin. I am not able to get them off. I think there is a nut on the other side nut I am not able to grab it. I am using the tool that came with my Xterra to unscrew the bolts. Do I need any other tools? How did Nissan even get the bolt tight without the nut spinning? Do you guys have sny ideas? Maybe I should have the dealer install, but I am concerned in case I ever need to remove it. Woukd I have the same problem. Thanks.